Knife-sharpener.



Patented Aug. 6, 1912.

W. A. HAYES.

KNIFE SHARPENER.

APPLICATION FILED 1123.25, 1910.

COLUMBIA PLANOURAPH 60., WASHINLINN. b. c;

UNITED STATES PATENT OFFICE.

WILLIAM A. HAYES, OF PHILADELPHIA, PENNSYLVANIA.

KNIFE-SHARPENEB.

To all whom 'it may concern:

Be it known that I, WVILLIAu A. HAYES, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inKnifeShai-peners, of which the following is a specification.

This invention has for its object a simple article of manufacture thatmay be easily secured to and carried on a key ring, so as to serve as anidentification tag, while at the same time, the device is so formed thatit may be used as a nail file and cleaner, cuticle evener and a knifesharpener. The device being always at hand, and yet not in the way.

The invention consists in certain constructions, arrangements andcombinations of the parts that I shall hereinafter fully describe andclaim.

For a full understanding of the invention reference is to be had to thefollowing description and accompanying drawings in which:

Figure l is a perspective view of a device embodying the improvements ofmy invention; Fig. 2 is a side edge view thereof; and, Fig. 3 is a'rearface view.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the accompanying drawingsby the same reference characters.

The device of the present invention is preferably constructed of steel,although it may be made of other metal or material, and embodies a shankl and a loop 2 formed integrally with the shank, the inner wall of theloop being substantially turbinate in form and terminating at thejuncture of the shank and loop in a constricted slot 3 whichcommunicates with a perforation at, the walls of the slot 3 graduallyapproaching, and being preferably curved in opposite di rections asshown and providing a wedgelike opening in which the blade of a knifemay be passed back and forth to sharpen the same. Manifestly thecommunication between the opening of the loop 2 and the perforation atprovides for the yielding of the material and the proper abrasive actionon the two sides of the knife blade.

Specification of Letters Patent.

Application filed April 25, 1910.

Patented Aug. 6, 1912.

Serial No. 557,576.

It is preferred in the use of the device as a knife sharpener, that theknife be drawn back and forth at a slight angle to the face of the shankl.

The material .of which the device is constructed is of uniform thicknessthroughout as shown in 1 and 2, consequently the cutting edges at thejuncture of the aperture 4 and the walls 3 are relatively long. By thisarrangement the blade to be sharpened can be twisted as it is drawn backand forth and thus apply a strong leverage force to increase thefriction of the abrasive action.

The shank 1 is formed on one face with transverse serrations 5 wherebyit may serve as a nail file, and preferably correspondingly formed oneither or both edges, as indicated at 6. The shank terminates at its endin a smooth extremity 7, the edge of which is rounded to serve as a nailcleaner, this extremity having a rounded side 8 designed to serve as acuticle evener. The reverse side of the shank 1 is smooth and isdesigned to receive an identification mark, whereby the device may besecured to a key ring, for instance, and identify the owner of the keys,should they be lost or misplaced.

From the foregoing description in connection with the accompanyingdrawing, it is evident that I have produced a very useful article whichmay be cheaply made and which will serve a variety of purposes as abovenoted, the device being so arranged that it may be easily carried on akey ring, and be at hand at all times when needed. without being in theway.

Having thus described the invention, what is claimed as new is:

A sharpener comprising a shank having at a point between its ends aperforation, the material of which the shank is formed at one side ofthe said perforation and toward one end of the shank being formed intoan enlarged continuous loop.

In testimony whereof, I affix my signature in presence of two witnesses.

WVILLIAM A. HAYES.

lVitnesses:

MARIE C. F. HAYES, AGNEs C. HAYES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

